Rule.



c. HANSEN.

RULE.

APPLIGATION FILED 001. 20, 1908.

922,580., Patented May 25,1909;

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lINTTllD PATENT @FFIQE CHARLES HANSEN, OF CORVALLIS, OREGON.

RULE

To all whom it may concern:

Be it known that I, CHARLES HANSEN, a citizen of the United States of America, re siding at Corvallis, in the county of Benton and State of Oregon, have invented certain new and useful Improvements in Rules, of which the followin is a specification.

My invention while applicable to any rule, I have shown applied to an ordinary two foot or carpenter's rule, and the object of my invention is to construct in a rule a part which may be used as a protector for the fingers or hand when using the rule as a gage, and which will not interfere in the slightest degree with the use of the rule as a measure.

In order that my invention may be fully understood I will proceed to describe it with reference to the accompanying drawings, in which:

Figure 1 is a side elevation of a portion of a rule provided with my improvement. Fig. 2 is a plan of the same. Fig. 3 is a vertical section on the line 3-8, of Fig. 2. Fig. 4 is a side elevation showing the manner of using the rule as a gage. Fig. 5 is a detail of the protector or pivoted sliding block.

My invention consists essentially in providing one or both end sections of an ordinary carpenters rule, or, in the case of an ordinary ruler, some portion thereof, with a long narrow slot with grooves in its sides, wherein is trunnioned a pivoted block, slidable toward either end, which block when not in use lies flush with the surfaces of the rule or ruler, being removably held so by means of an upstruck catch, and which block when in use projects at an angle to the surface of the rule, is adjustable back and forth in the longitudinal slot, and serves as a rubbing block between the fingers or hand and the material upon which a mark or other operation is to be made.

1 is an end section of a rule, formed preferably of wood or metal, and hinged to the adjacent section of the rule at 2.

3 is a block, formed preferably of metal, pivotally and slidably mounted in the section 1, by means of trunnions 4 projecting from block 3 into the long recesses or grooves 5, formed in the sides of the long slot 1, the block 3 being retained in flush position, when not in use, by the struck up projections 6, which are formed on one or more corners of the block 8, lying within the grooves 5 and abutting against the upper and lower sides of the grooves 5. These struck up projections Specification of Letters Patent.

Application filed October 20, 1908.

Patented May 25, 1909.

Serial No. 458,645.

6, which may be mere burs made'by tapping at 7 with. an ordinary punch, may be compensated for by additional punching at any time, in case of their wearing away by frequent use.

The natural spring of the sides 1 of the section 1 will permit the aforesaid projections to pass from their position in the grooves 5, past the sides 1 to a position above or below the surface of the section 1, permitting the block 3 to rotate 011 its trunnions 1 to a position at an angle to the surface of the section 1, the ends of the block projecting above and below, as shown in ig. 3 in dotted lines and in Fig. 4 in full lines, where it is shown as pushed against the edge of plank 8, shielding from the surface of the plank, thumb 9 and forefinger 10, which, by reason of their gripping section 1, serve as a stop to limit the movement of block 3, while the rule, acting as a gage, is moved along the plank, guiding pencil 11, in making a line parallel with the edge of the plank, for purposes Well known to mechanics.

The trunnions 4 may be formed on the block 3 or may be made of a short section of wire passed through the block. Owing to the fiat sides of the block 3 its movement is confined to a sliding and pivoted one in but two planes, thus preventing the trunnions from turning to a position free of the grooves 5 and misplacing the block 3, which, in the manufacture of the improvement, may be slipped in from one end prior to the riveting of the side pieces 1' to the end piece as is done in the manufacture of some rules, or to each other as in other rules, or in any other practical manner.

It will be seen that the above described device furnishes a sim lo and ready gage in a rule, without the slig itest interference with the ordinary use of the rule, permitting it to be folded up flat, the pivoted block, in case it should not have been pushed flush by the fingers, readily slipping into flush position 011 the folding up of the rule, the adjacent section of which will press the block into place.

Having thus described my invention, the following is what I claim as new therein, and desire to secure by Letters Patent.

1.1-1 rule having a slot, grooves in the walls of the slot, and a pivoted gage-block adapted to slide in the slot and provided with trunnions adapted to slide in the grooves.

2. A rule having a longitudinal slot, grooves in the Walls of the slot, and a pivoted gageblock adapted to slide in the longitudinal slot and provided With trunnions adapted to slide in the grooves.

3. A rule having a slot grooves in the Walls ofthe slot, and a pivoted gage bloc1; adapted to slide in the slot and provided with trunnions adapted to slide in the groo'ves, and a projection providing a catch adapted to engage in a groove.

CHARLES HANSEN. Witnesses E. D. HORGAN, T. H. BENGEN. 

